Codeforces Round #444 (Div. 2), problem: (A) Div. 64 Solution In C/C++
#include<stdio.h> char s; int main() { scanf(” %s”,s); int x=0,y=0,z=0; while(s==’0′) x++; while(s!=0) z++; for(int i=x+1;i<z;i++) if(s==’0′) y++; if(y>=6) printf(“yes”); else printf(“no”); return 0; }